Promotion of good mental health, prevention, and early intervention before/at the onset of
mental disorders improve outcomes. However, the range and peak ages at onset for mental …

Background Although the association between psychotic illness and cigarette smoking is
well known, the reasons are unclear why people with psychosis are more likely to smoke …

Adolescence is an important ontogenetic period that is characterized by behaviors such as
enhanced novelty-seeking, impulsivity, and reward preference, which can give rise to an …

Background The extent of metabolic and lipid changes in first-episode psychosis (FEP) is
unclear. Aims To investigate whether individuals with FEP and no or minimal antipsychotic …

Cigarette smoking is strongly associated with psychotic disorders such as schizophrenia.
For several decades it was assumed that the relationship could be explained by reverse …

The link between cannabis use and psychosis comprises three distinct relationships: acute
psychosis associated with cannabis intoxication; acute psychosis that lasts beyond the …

BackgroundReasons for the increased prevalence of cigarette smoking in schizophrenia are
unclear. Studies assessing clinical symptoms have sampled heterogeneous populations …

There is growing interest in the relationship between cannabis and psychosis. The link
between cannabis use and psychosis comprises three distinct relationships: acute …

A recent meta-analysis showed that the mean age of onset of psychosis among cannabis
users was almost three years earlier than that of non-cannabis users. However, because …

Schizophrenia has substantial variation in symptom severity, course of illness, and overall
functioning. Earlier age of onset (AOO) is consistently associated with negative outcomes …